/**
 *this class contains two intgers which determine the coordinates
 *of that point;
 **/
public class CoOrds{
		public int x;
		public int y;
		public CoOrds(int xx,int yy){x=xx;y=yy;}
		public String toString(){
			String s="["+x+","+y+"]";
			return s;
		    }
		  }